Treeline Biosciences

Treeline Biosciences is a biotechnology company located in Stamford, CT, focused on developing precision medicines for cancer and other serious diseases. The company integrates various scientific disciplines, including mechanistic biology, medicinal chemistry, computational science, structural biology, and protein science, to create innovative drug discovery solutions. The company is actively working on several promising drug candidates, such as Zeprumetostat, an EZH2 inhibitor in Phase 1/2 clinical trials for castration-resistant prostatic cancer, and TLN-254, which is in Phase 1 clinical trials for T-cell lymphoma. Treeline Biosciences has secured funding through Series A financing rounds, allowing it to advance its research and development efforts in the field of oncology.

4 open jobs4 jobs
Research Watertown, United States ~148 employees

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Employees
148
-0.7% in the 3 months to Jun 2025
Revenue / employee
$371K
Revenue ~$54.9M
Total funding
$895M
Last round Oct 2024
12-month attrition
7.1%
Tech: 14.6%
H1B filings, FY2025
1
Sponsors visas
Open jobs
4
Last 30 days

Headcount trend

Treeline Biosciences went from 133 employees in Jul 2023 to 148 in Jun 2025. Jan to Jun 2025: 3 people joined, 3 left.

Headcount data through Jun 2025

Org structure

Headcount by department

Other116
Operations14
Engineering8
Finance7
HR2
Sales1

Hiring now

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Vice President, Head of Quality AssuranceWatertown, Massachusetts, United States $285k - $350k 2 days agoAssociate Director / Director, Nonclinical ToxicologySan Diego, California, United States $207k - $243.3k 3 days agoClinical Biomarkers LeadWatertown, Massachusetts, United States $187.2k - $200k 4 weeks ago

H-1B sponsorship

H-1B Sponsorship Limited
H-1B Filings by Department
Engineering4
Legal1
Historical LCA Filings
2025
1
2024
4

The department split adds up all the years listed above. FY2025 alone: 1 filings.

Funding

  • Oct 2024 · $422M · ARCH Venture Partners, OrbiMed, GV
  • Sep 2022 · Series A · $262M · KKR’s Health Care Strategic Growth Fund II, Rock Springs Capital, OrbiMed
  • Apr 2021 · Seed · $212M

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Treeline Biosciences FAQ

How many employees does Treeline Biosciences have?

Treeline Biosciences has about 148 employees, down 0.7% over the 3 months to Jun 2025.

Does Treeline Biosciences sponsor H1B visas?

Yes. Treeline Biosciences filed 1 H1B (LCA) application in FY2025, according to the latest U.S. Department of Labor disclosures. It was for a Engineering role.

What is Treeline Biosciences's revenue per employee?

Treeline Biosciences makes about $371K in revenue per employee, based on $54.9M annual revenue and 148 employees.

How much funding has Treeline Biosciences raised?

Treeline Biosciences has raised $895.45M in total funding.

Data from Company Prospectus, DOL LCA disclosures, WARN notices and 6figr salary profiles.